Martin Christ Alpha 2-4 LDplus User Manual
Page 35
Operating Manual Freeze Dryer ALPHA 1-4 LDplus / ALPHA 2-4 LDplus
Installation and Commissioning of the Unit 35
Installation of the VSP62/63 vacuum sensor
The vacuum sensor has to be connected to the vacuum connection
at the back of the unit in an upright position using a centring ring
and a clamping ring. The sensor connecting cable has to be
connected to the corresponding socket at the back of the unit.
After power-on, the vacuum sensor needs a few minutes to reach
its operating temperature.
Installation of the pressure control valve
In case a pressure control valve is available it has to be mounted
between the freeze-drying unit and the vacuum pump. Then it has
to be plugged into the socket of the freezing unit on the rear panel
of the unit.
Installation of the vacuum pump
The vacuum pump is connected to the unit and plugged into the
socket on the rear panel of the unit.
The vacuum gases shall be filtered or drained.
The aeration valve and the drain valve on the left side of the unit
have to be closed.
The lid or the drying chamber has to be mounted to the ice
condenser chamber.
In case the drying chamber is equipped with rubber valves they
have to be closed.
Further accessories (e.g. shelves, connections for round bottom
flasks) are added accordingly.
Please observe the installation direction
of the pressure control and stop valve